Improvement in steam-generators



L. P. R., BLANCHARD.

Steam-Generators.

No.154,783. Patented Sept. 8,1874.

UNITED STATES PATENT OFFICE.

L. P. RENEAULT BLANCHARD, OF ST. HYAGINTHE, CANADA.

IMPROVEMENT |N STEAM-GENERATORS.

Specification forming part of Letters Patent No. 154,783, dated September 8, 1874; application tiled August 24, 1874.

To all whom it may concern:

Beit kn own that I, L. P. RENEAULT BLANCH- ARD, land-surveyor and civil engineer, of the city of St. Hyacinthe, in the county of St.'

Hyacinthe, Province of Quebec, Canada, have invented a new and valuable Improvement in Steam-Generators; and I do hereby declare that the following is a full, clear, and eX- act description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon. l

Figure 1 of the drawings is a representation of a front View of my steam-generator. Fig. 2 is a sectional view of the same.

This invention has relation to steam-generators, wherein the water is suddenly converted into spheroidal 7 or superheated steam by injecting it in the form of fine spray upon highly-heated plates. The nature of my invention consists in the construction and arrangement of the parts, as will be hereinafter described and claimed.

` The following is a description of my improvement:

In the annexed drawings, A represents the shell of the generator, which incloses the walls of a furnace, B. 'C designate-s a smoke-Hue leading out of the furnace B through the shell of the generator, as shown in Fig. 2. D is a force-pump for supplying the generator `with water through a pipe, E, which terminates in a nozzle, c, and which is nely perforated for injecting the water in iine spray. This nozzle is provided with a valve-cock, d, for the purposeof regulating the amount of water pumped into the-generator. F represents a v safety-valve, which may be constructed in the usual or most improved manner, and H represents the pipe for conducting steam to the engine. Below the jetting-nozzle e, I arrange in the generator-shell, a finely-perforated plate, G, which is, preferably, inclined at an angle of aboutthirty degrees, but which may be arranged horizontally, as shown in Fig. 2. If desirable, another finely-perforated plate may be applied in the generator below the plate G, and arranged in close relation to the furnacewalls, but this is only necessary in generators which are of such capacity that the feed-water would strike the furnace-plates before it is converted into vapor. l

The operation of my generator commences with the heating of the furnace-plates to a high temperature, and when this is accomplished the force-pump is set in motion by hand, and the cock d is opened to allow a proper quantity of water to be injected into the generator. This first injection of water is immediately converted into high j steam,7 which starts the engine with which the steampipe H is connected, after which the pump is actuated by the engine by properly connecting it to' the piston-rod of this pump, the valve d being adjusted to supply such a quantity of water as will, when converted into steam, keep the engine properly supplied.

It will be seen from the above description, that water is iirst injected into the generator in line spray, which is highly heated and converted into vapory particles. This vapor falls upon the perforated plate G, and in passing through it is still further attenuated, after which the steam is superheated by the fur-` nace-plates.

l do not claim, broadly, a perforated distributing-plate within and surrounding a feedwater injector.

What I claim as new, and desire to secure by Letters Patent, is-

The combination of the perforated plate B, injecting-nozzle e of the induction-pipe E, furnace B, and smoke-due C, all arranged within the shell A, substantially as shown and described.

In testimony that I claim the above I have L. P. RENEAULT BLANCHARD.

Witnesses: T. P. BOURGEOIS T. BocHoUD. 

